OEM Quicksilver MerCruiser Design I Seawater Pump Wear Plate Seal – 8M0074880
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Description
Description
Quicksilver 8M0074880 is the Design I seawater-pump wear plate seal used in the specified MerCruiser pump assembly.
Product details
- Manufacturer part number: 8M0074880.
- Cataloged as the Design I gasket/plate seal.
- Design II uses a separately identified wear plate seal, 8M0114788.
- Mercury Service Bulletin 2016-09R1 distinguishes the two pump designs.
Fitment and selection
Listed in the MerCruiser 6.2L MPI 350 EC and 4.5L MPI 200 Alpha/Bravo EC seawater-pump catalogs. Confirm the installed pump design and engine serial number before ordering; do not assume Design I and Design II parts interchange.

